The Bosch Blue Granite CYL-5 Masonry Drill Bit in 12mm diameter with a 250mm working length is purpose-built for tackling deeper, larger-diameter fixing holes in concrete, natural stone, and artificial stone. The extended 250mm length makes it particularly well suited to applications requiring greater drilling depth, such as structural fixings and heavy-duty anchoring. Bosch’s proprietary carbide blend and diamond-ground cutting edges provide exceptional resistance to wear even during prolonged, demanding use. The 2-flute vario design with a short, variable incline keeps friction low and ensures reliable dust clearance throughout the depth of the hole, protecting both the bit and the material. The Bosch Power Grip Shank System delivers 100% power transfer from machine to bit, ensuring no energy is wasted and wear is kept to a minimum. Compatible with cylindrical shank systems on all corded and cordless impact drills, it fits standard three-jaw drill chucks. PGM certification guarantees tight tolerances, clean holes, and a secure hold for fixings. Features and Benefits: • Extra-long durability for heavy-duty drilling in concrete and stone • Diamond-ground cutting edges with proprietary carbide blend for superior wear resistance • 2-flute vario design for reduced friction and effective dust removal at depth • Bosch Power Grip Shank System for 100% power transfer and reduced wear • PGM certified for tight tolerances and firm fixing hold Specifications: Diameter: 12mm Working Length: 250mm